title: [Imaging in the diagnosis and the staging of gallbladder tumors].
abstract: Most of gallbladder tumors are benign. Adenoma, cholesterol polyps, or adenomyomatosis are most frequently typical on ultrasonographic images. All symptomatic lesions must be considered as indications for surgery. It may be difficult to identify precancerous or malignant lesion. Polyps over 1cm are indication for preventive cholecystectomy. In case of suspicious polyp or suspicious wall thickening, endoscopic ultrasonography can be helpful to evaluate local tumoral spread and eliminate differential diagnosis. Unfortunately, diagnosis of gallbladder cancer is often late, when surgical resection can't be curative. Computed tomography and magnetic resonance imaging examinations are then useful for local and metastatic staging.
authors.affiliation: Service de radiologie, CHU de Poitiers, BP 577, 86021 Poitiers, France. vialleromain@yahoo.fr
authors.forename: R
authors.initials: R
authors.lastname: Vialle
authors.forename: S
authors.initials: S
authors.lastname: Velasco
authors.forename: S
authors.initials: S
authors.lastname: Milin
authors.forename: V
authors.initials: V
authors.lastname: Bricot
authors.forename: J-P
authors.initials: JP
authors.lastname: Richer
authors.forename: P-M
authors.initials: PM
authors.lastname: Levillain
authors.forename: J-P
authors.initials: JP
authors.lastname: Tasu
mesh_terms: D003952:Diagnostic Imaging; D005706:Gallbladder Neoplasms / Q000175:diagnosis*; D006801:Humans; D009367:Neoplasm Staging